Descriptor
| Behavior Development | 1 |
| Behavior Patterns | 1 |
| Birth Order | 1 |
| Body Weight | 1 |
| Longitudinal Studies | 1 |
| Pregnancy | 1 |
| Twins | 1 |
Source
| Child Development | 1 |
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Peer reviewedMatheny, Adam P., Jr.; Brown, Anne M. – Child Development, 1971
Descriptors: Behavior Development, Behavior Patterns, Birth Order, Body Weight
